基于FPGA的LED视频显示屏控制系统的设计

发布时间：2018-05-21 04:00

本文选题：FPGA + LED显示　；参考：《武汉科技大学》2010年硕士论文

【摘要】：作为新一代的信息传播媒体,LED显示屏自80年代问世以来发展迅速。视频LED电子显示屏以先进的视频显示技术为核心,可以同步播放各种图文信息,广泛用于金融、邮电、电力等行业的标准化窗口及广告、宣传、体育场馆等公共场所的电子图文显示,具有广阔的应用前景。 FPGA技术作为一种新兴的技术,其具有静态可重复编程的特性,芯片上包含的资源丰富,能够将庞大的、满足各种需求的、复杂的数字电路以及高性能微处理器整合到一块芯片上实现片上系统(SOC),使得系统的开发周期更短、可靠性更高。本文提出了一种基于FPGA的LED视频显示屏控制系统的设计方法,系统能完成DVI接口视频信号的采集,并在大型的LED显示屏上同步显示。论文主要介绍了整个系统的硬件和软件设计,并针对设计中关键技术问题进行了详细的分析,包括数据采集、数据重组、切片存储和256级灰度显示的实现方法等。本论文研究了基于FPGA的DVI数据采集以及LED显示屏的扫描驱动方法,主要工作如下: 1.设计了基于FPGA的实现视频数据重组和切片存储的数据采集模块。 2.详细分析了LED视频显示屏的视频显示扫描时序,提出了一种可行的扫描控制流程,并进行了流程优化的分析。 3.实现了视频流数据的处理,为存储控制器的设计提出了基于乒乓操作的流水线控制方法。 4.针对系统的指标要求进行器件的选择和系统的指标分析。
[Abstract]:As a new generation of information media, LED display screen has developed rapidly since 80's. Video LED electronic display screen with advanced video display technology as the core, can simultaneously play a variety of picture and text information, widely used in finance, post and telecommunications, electricity and other industries standardized window and advertising, publicity, The electronic graphics of public places such as stadiums and stadiums show broad application prospects. As a new technology, FPGA technology has the characteristic of static and repeatable programming. Complex digital circuits and high-performance microprocessors are integrated into a single chip to implement the system on a chip, which makes the development period of the system shorter and the reliability higher. In this paper, a design method of LED video display control system based on FPGA is presented. The system can collect the video signal of DVI interface and display it synchronously on the large LED display screen. This paper mainly introduces the hardware and software design of the whole system, and analyzes the key technical problems in the design in detail, including data acquisition, data recombination, slice storage and the realization method of 256 grayscale display. This paper studies the DVI data acquisition based on FPGA and the scanning drive method of LED display screen. The main work is as follows: 1. A data acquisition module based on FPGA for video data recombination and slice storage is designed. 2. The scanning sequence of LED video display screen is analyzed in detail, a feasible scanning control flow is proposed, and the flow optimization is analyzed. 3. The processing of video stream data is realized, and the pipeline control method based on ping-pong operation is proposed for the design of storage controller. 4. According to the requirements of the system, the device selection and the system index analysis are carried out.
【学位授予单位】：武汉科技大学
【学位级别】：硕士
【学位授予年份】：2010
【分类号】：TN873

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